580EX II Rear synch

moranphotography

moranphotography

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Phil
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Is it possible to get rear curtain synch with a 580EX II when controlled remotely using pt04 setup?

I doubt it but thought I would ask the clever clogs of this forum :wave:


Phil
 
As Richpips said, the answer is no.

The only way to use rear-sync off-camera is with the Pocketwizard FlexTTL - which works well for this purpose. (They've received mixed reviews overall, but I think most recent adopters have positive experiences of them)
 
There is another (convoluted) way that utilses a 2nd flash on the camera which triggers an optical sensor, which will then send it's signal to the remote 580. I'll look it up if that's of interest.
 
richpips said:
No.
Click to expand...

Except with the new auto-TTL Pocket Wizard.

It does all sorts of cool things that the regular Canon system doesn't.

Edit: RadioPopper should also do it. And Rich's idea of using a remote optical slave also works.
 
HoppyUK said:
Except with the new auto-TTL Pocket Wizard.

It does all sorts of cool things that the regular Canon system doesn't.

Edit: RadioPopper should also do it. And Rich's idea of using a remote optical slave also works.
Click to expand...

Actually RadioPoppers won't manage this as all they do (AFAIK) is replicate the functions available in Wireless eTTL (which excludes off-camera rearsync).

I believe that the Pocket Wizards are the only option with Canon flashes, and that it might be possible with the Quantum TTL enabled models.
 
markrichardson said:
Actually RadioPoppers won't manage this as all they do (AFAIK) is replicate the functions available in Wireless eTTL (which excludes off-camera rearsync).

I believe that the Pocket Wizards are the only option with Canon flashes, and that it might be possible with the Quantum TTL enabled models.
Click to expand...

RadioPoppers will do it, because they replicate the functions of an on-camera flash gun in an optical/radio hybrid system.

It's kinda clunky compared to the PW system and all its clever radioness, but it seems to work, and works well at range too, not suffering the RF interference problems that seem to plague PWs because of their higher frequency.
 
RadioPoppers can do what they like.

You can't buy them in Europe.
 
HoppyUK said:
RadioPoppers will do it, because they replicate the functions of an on-camera flash gun in an optical/radio hybrid system.

It's kinda clunky compared to the PW system and all its clever radioness, but it seems to work, and works well at range too, not suffering the RF interference problems that seem to plague PWs because of their higher frequency.
Click to expand...

Sorry - I'd assumed we were talking about multiple flashes (in groups/ratios etc) rather than just one. It seems like such an error from Canon that they didn't include support for wireless rear sync with multiple flash.

This is of course assuming that Radio Poppers haven't come up with a nifty way of getting around the Canon implementation in the way PW have?
 
markrichardson said:
Sorry - I'd assumed we were talking about multiple flashes (in groups/ratios etc) rather than just one. It seems like such an error from Canon that they didn't include support for wireless rear sync with multiple flash.

This is of course assuming that Radio Poppers haven't come up with a nifty way of getting around the Canon implementation in the way PW have?
Click to expand...

I'm not sure why Canon's E-TTL can't do remote second curtain sync. It works slightly differently to Nikon CLS and uses other hot-shoe contacts for E-TTL firing as well as the central pin. Maybe this is due to patent restrictions, but there are third party workaround solutions that will fire second-curtain sync so it can be done, with full E-TTL control of multiple remote units.

RadioPopper needs a master unit on the camera to work. Basically it senses the master signals and converts them to radio. The receiver then converts them back to optical and feeds them to the remote sensor. It's a bit cumbersome but seems to work. It can't do anything that the master flash unit can't do though.

PocketWizard circumnavigate the on-camera flash, and don't need a master unit to pick up signals from - it gets them straight from the hot-shoe. They can also do a few cool things in addition to remote second curtain cync, like Hypersync which increases the x-sync speed quite a bit, and a clever trick which tailors the high speed sync pulses to the actual shutter speed and so increases power and range, plus speeding up recycle and improving battery life.

The Pocket Wizard system is definitely the way to go, apart from the small problem that it doesn't actually work reliably at even modest distance with most Canon guns, due to RF interference at the frequency they have to use. I'm sure they'll sort it, and hopefully with something better than the crude RF shield they are currently offering, but there are also continual delays with their Nikon equivalent CLS system and it's a fair guess that they are having the same problems there. Maybe. I also think they could sort it at a stroke by changing to the higher frequency other radio triggers use, but that would ruin their reverse compatability with thousands of existing PocketWizard triggers.
 
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